step 1. get a any old ipod on ebay step 2. put a single mp3 tune on it step 3. place it in a big box, with the play button located right under a coin sized slot
openbsd is great, but it's not the hammer for all nails... /Pete On 28 Dec 2007, at 3:34 AM, Nick Holland wrote: > I've got a little project I'm working on here. > It involves stuffing a computer in a donation box with a > money detector, so every time someone tosses money in the box, > it plays an MP3 file. > > (no, you can't make a living at this. At least, *I* can't) > > The first two of these I did were many years ago, and we used a > 486 running a simple DOS app. Well, computers that run DOS well > are gone, and trying to bring up a new program to play sound > files on any of the modern sound chips would be (not) fun...and > annoying the next time the hardware all changes again. > > So, for this generation, I'm using OpenBSD, mpg321, and a 1G > CF flash device attached to an CF-> IDE interface. > > However, this is the first time I've ever done an OpenBSD system > that wasn't going to be attached to some kind of network for > (hopefully) years at a time. In fact, hopefully, it will NEVER > be attached to a network. And, while I got a 1G CF device, I > could imagine doing something stupid and having it slowly fill > the CF media and six months from now getting a call saying, "It > died. Come fix it", and since it will be in another country and > probably a ten hour drive away, I'd like to avoid that. :) > Once this thing is deployed, I won't have access to it at all, > so I'll have no ability to spot a potential problem or fix it. > > SO, to try to keep things quiet, I've disabled the daily, weekly, > and monthly scripts, I've disabled sendmail in /etc/rc.conf.local. > Before I ship it out, I'll move /var/log and /var/tmp to point to > a mfs system, so hopefully, if something starts logging, a power > cycle will dump everything. Only 60M is mounted RW, so it fsck's > very quickly, and my app writes only to the MFS. > > What have I forgotten? Is there anything else I can do to avoid > slapping my forehead and saying, "D'oh! Forgot to ..." before I > ship it out fully detached? The good news is I'm pretty sure > there is at least one OpenBSD developer near-by, but that's just > all the more reason to make sure I don't screw it up, I'll never > live it down. :) > > Nick.
